Head of Artificial Intelligence, ExTrac

£140-200k

Expert level

London

2-5 days a week in office

We combine human expertise, curated data, and domain-specific AI to enable faster decision-making.

Open for applications

We combine human expertise, curated data, and domain-specific AI to enable faster decision-making.

21-100 employees

B2BArtificial IntelligenceSecurityBig dataMachine LearningSaaS

Open for applications

£140-200k

Expert level

London

2-5 days a week in office

21-100 employees

B2BArtificial IntelligenceSecurityBig dataMachine LearningSaaS

Company mission

To empower our customers to make faster, better-informed decisions about the risks and opportunities emerging from world events.

Job

Company

Role

Who you are

10+ years of experience in machine‑learning engineering and applied research, with at least 4 years leading high‑performing AI teams.
Deep expertise in large language models (LLMs), NLP, and transformer architectures hands‑on with fine‑tuning, RAG, context engineering, and safety alignment.
Proven track‑record shipping AI/ML systems from 0→1 and scaling them in production in start‑up environments.
Strong Python engineering skills and familiarity with modern ML tooling (PyTorch, JAX, Vector Databases, MLOps platforms).
Able to translate business problems into AI roadmaps and communicate clearly with engineers, data scientists, and non‑technical stakeholders.
A strategic thinker who thrives in ambiguity, balances research rigour with product velocity, and is passionate about ExTrac’s mission.

What the job involves

Define the AI vision and technical strategy that underpins our product roadmap.
Build, coach, and inspire a growing team of ML engineers and researchers creating a culture of excellence, pragmatism, and rapid iteration.
Own the end‑to‑end lifecycle of LLM‑powered features: data curation, model selection or training, evaluation, deployment, and continuous improvement.
Collaborate closely with Product, Software Engineering, and Data teams to embed AI capabilities into user‑facing workflows.
Establish best practices for model governance, experimentation, observability, and cost/performance optimisation across GPU/TPU and CPU inference stacks.
Stay on top of the fast‑moving AI research landscape, assessing new techniques and partnering with external vendors or academia where it accelerates our mission.
This is primarily a technical individual contributor role with some line management scope, supporting the growth and performance of two direct reports.

Application process

1. Intro call & CV review – 30 min
2. Python Pair Programming Interview – 60 min
3. AI Technical Interview – 90 min
4. Technical Leadership & Culture Interview – 60 min with founders

Salary benchmarks

Our take

Traditional intelligence gathering often struggles to keep pace with the evolving nature of threats. Siloed approaches focus solely on physical or online risks and miss the complex interplay between the two, leaving organisations vulnerable.

ExTrac offers a comprehensive approach, with its system bridging the physical and online divide, providing real-time insights into a broad range of threats, including terrorism, violent extremism, disinformation, and crime. Its Co-Analyst tool allows even non-experts to obtain valuable insights and make faster, more informed decisions.

The company's innovative technology and focus on user-friendliness positions it to empower a wide range of organisations to proactively manage risk. As the threat landscape continues to evolve, ExTrac is poised for continued growth, with a wealth of opportunity on its horizon.

Freddie

Company Specialist at Welcome to the Jungle

Company

Employee endorsements

Meaningful work

"We are driven by an inspiring mission to support customers engaged in real-world security and threat management on a daily basis. ExTrac is leading..."

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Company benefits

Flexible working: work where you work best, with the opportunity to spend two days a week working with the team in person
Access to our central London office space
The opportunity to develop and take on new challenges and responsibilities as we grow as a company
An annual individual learning and development budget of £500

Company values

Creativity & Design | We blend technology and human understanding to create solutions that are both powerful and intuitive.
Innovation & Excellence | We don’t follow the crowd – we pursue excellence and push boundaries at every turn.
Products That Are Loved | We build with purpose, obsess over the details, and take pride in everything we create.
No Egos | We push hard, own our mistakes, and succeed together.

Company HQ

City of London, London, UK

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